Button-blank machine



May 8, 1928.

J. R. KUZMA ET AL BUTTON BLANK MACHINE 3 Sheets-Shee. 2

Filed April 6. 1926 E W W N M V N T T W. A

\ J. R. KUZN1A ET Al,

May 8, 1928.

BUTTON BLAN MACHINE Filed April 3- 1926 5 Sheets-Sheet 3 IN VE N TR5 [M R. W

FUTUR/VU Patented May 8, 1928.

lUN ITED STA'T'ES JOHN R. KUZMA AND.ANDREW os rRocnovsw, on NEW YORK, Ni Y.,ASSIGNORS ro MANIIATTAN BUTTON MACHINE 00. ,mo., or NEWORK,; N. Y., A CORPORATION F k NEW oniz.

Application filed- April 6,

The invention relates particularly toa' machine to be used by the mother-of-pearl button industry, and comprises a machine for splitting or.cntting corcs intobutton blanks, the'cores in question being small.eyl-

tuken on the line 44 of Fig; 2;nnd

inders out from various kinds oflshell.

In divid ng these cores il; hasbeenth practice t split the cylinders into r0glx button blanks byhand, with a cliisel. ,This results in the productionof nneven blanks of all thicknesses, making it necessary to grind them to the desired thickness by ineans of another machine, which means wa steof material and additional time, labor and exense. r

The object of the present invention is to provide a simple and eificient machine With which to ont suc-h cores or cylindersinto a plurality, of e(1ual blankS at one operation, Whreby more blanks 1nsy be obtained from one cors, and the blanksare cansed*to be all of the same size, andstraight and even, iendering unnecessary a grinding opertion.

VVe are aware thatcomplicated'machines have been proposed foi doingthis work, and the particular purpose of our invention is to provide a very simple machihewith wh ich to perform the operation satisfactorilyand accurately. The machine Comprises a stationarily snpported spindle carrying agang 'of rotary saw dises, a slidable two-part chuck movable in right linestowardand from the cutters, With slotted jaws at its forWard encl dapted to hold the core, and single lever means for advancing and withdrawing the chuck and causing'the opening and closing of its jews. The construction and operation of this chnck is a feature of the machine. 1

The nature and advantages of the machine Wlll be readily Understood from the follow in, z specification.

In the aecompanying drawigs -formhg part hereof: y j V Fig. 1 is a front elevation of the machine, :1, portion of'the base being, brokn out bcause of limits of space, and aportion of 3.

housing being showxl broken avvayflahd in section, the handle portion of tl1hand lever being also broken away;

Fig- -.2 S@ gp a,n V153W; 1 9 1 9 si g be BUTT91LBLANK MACHINE.

1926. Serial No. 100,010.

ing showninhorizontal section, and con-- duit'being br0ken away;; r

Fig; 3. is 'a vertical, transverse section taken on the line 33 of Fig.l;s' 1

Fig.'4. is averties], longitudinal'section uFig. 5-is 2L vertical transverse section on the line 5-5 of Fig. 1. V

'lhe machine has an oblong base 01' irame 2, on winch, t0ward one end, is atransvexse way 3, Whereohisslidably fittcd 1 carriage 24-, se1d -carr1xgc be1ng admstable by ascrew spindle 5 rotatable in the base and threading tlirdugh a nnt 6 on the carriage,this spindle hsving a wheel 7 on its outerend for mannal o1 emtion. u r

' Aspindle8isjou1naldin beurings 9 on ness ofthe buttonblanks to be eut. By subi stituting spacrsof somewhat greater or less thickness onyx desired thickness of blanks mny be obtained. n f

* An adjusting nut 14 on the re&r end of the spindle 8 Provides forthe taking np ofwear.

Tlie* cutting' head formed by the set-lof sawS on the :ront end of the spindle is enclosed*by a honsingf0rined by acap-like cover 15 tapplied to a fiXed dise 16011 the front of the frame of the carriage 4.- This housing bas en oblong ntrance 17 at one side, opposite thdedges of the saws; and ab0ve this entronce the h0i1sing is provided with a liquid l1amber 18 coinmunicating with the interior of the hOusing by a trans verseslit-opening 19 airariged to direct liquid dowhWard0nto the saw-blades. VVater or other' liquid .is supplied byze pnmp 20 driven by the aid ofa' pnlley 21, the pump being c0nnected Withsnitablesource by a conduit 22, nd with the water-chamber by a conduit 23. :'The W2iter, Which keepsthe sawblades from overheating, together with t e ks e l refu paS outthrough a 11 6 24 in the bottom of the housing, and may be received by a basin 25 formed in the base, whence the waste water and refuse may be carried oi by a pipe 26.

The base trame has an upstanding portion 27, on which is an elongated boxed guide-way 28, having a removable cover 29. This guide-way is in line with the entrance 17, and receire two slide-bars 30, 31, lying face to face, one above the other. These bars form holders for jaws 32, 33 of a chuck or work-holder for the Core t0 he divided. The jaws are secured to the forwvard ends of the bars by screws 34, and

one of the jaws, preterably the upper jaw has a suhstzzntially semi-cirenlar c0ncavity, While the forwa1d half of the lower jaw is oinitted. The parts of the chuek are capable of s;liding or moving lengthwise relatively to each other, and the plane of the relative movement or cleavage between the jaw-s bisects the work-receiving socket formed by the complimental aws. In other words, the line of relative movement is parallel with the ch0rd or base 01C- the concavity of the jaw 32. VVhen the jaws are in register, the socketf0rmed by the two jaws embraces approximately three-quarters of the circumference et a core between them, which is consequently held. When the short jaw 33 is retracted relatively to the long jaW, the cut blanks are released, and a fresh core can he introduced, to be held as soon as the short jaW is advanced again.

The parts of the chucl: carrying a core are advanced togethc1 to carry the core through the entrance 17 into the field of the sa\vs 11, are then withdrawn together, carrying the eut hlanks, and then the parts of the chuck are caused to move relatively to each other to reloaee the blanks and receive a Frcsh core. The j aws are slotted as shown at 85 in a comh-like manner to pass hetween the sawblades. If the spacing of the blades should be changed, the aws may be changed for others diffcrently slotted. The adjnstment of the carriage 4 enables the saw-blades at all limes to be alined with the slots in the jaWs.

The bars 30, 31 are connected by a sprin'g 36 accommodated in recesses 37 in the bars and hooked at its opposite endS about pins in these recesses. The action of thi-s spring is to bring the jaws into holding relation.

The bar 3l has a rearwatrd extension 38 for the connection of hand lever 39, Which is shown slidably fulcrumed in a pivot stud 40 on the trame and connected to the bar by a block 41 and pivot 42.' An adjustable Screw 43 in the block contacts with a Surface 45 of the fixed frame to limit the forward m'ovement of the chuck. A pin 46 on the bar 31 limite the rearward n1ovement of the bar 81 by coiitacting with a fixed stop 47 screwed to the rear end of the guide 28,

Bef.ore, however, the projection 46 on the bar 31 reaches the stop 47, the rear end of the bar 30 has already encountered the stop. Consequently the rearward movement of the bar 30 as then arrested, while the rearward movexnent of the bar 31 continued for a. short distance iarther, the spring 36 permitting the relative movement. This causes the opening of the jaws, as seen in Fig. 4. In the first part of the neXt forward movement produced by the lever, the bar 31 advancee, while the bar 30 remains stationary, held against the stop 47 by the spring 36. When the jaws are in register again, gripping a core, the two parts of the chuck are advanced together.

\Vhile the device has been described in detail, in order that a clear understanding may be had, it Will be understood that the invention is not limited to the precise form and details, and that varions changes may he 1hade without departing from essentials. The invention is partieulafly designed for and useful in the button industry, but it may loe applied to the outting of other materials than mother-of-pearl or in other in: dustries.

VVhat is claimed as new is:

1. A machine for cutting cores 01 shell stock into equal button blanks, comprising & stationarily supported rotary spindle, a eutting head comprising a number of saws seeured in spaced relation on. said spindle, a reciprocatory two-part chuck having slotted jaws to hold the core, and single manually operated lever means for advancing and retracting said chuck and producing relative movement between its parts to cause opening and closingof the aws. C

2. In a machine 01 the oharacter deseribcd, a chuck comprising tWO slidable parts carrying complemental jaws, a spring between said parts acting to bring the jaws into hold ing relation, means arranged to act upon one of said parts to advance and withdraw both parts, and a stop arranged t0 ,arrest the wthdrawal movement of the other part so that further withdrawal movement of the firsc part separates the jaws.

J OHN R. KUZMA. ANDREW OSTROCHOVSKY; 

